package com.java123.t2.extra;

public class Test2 {

	public static void main(String[] args) {
		Course course = new Course();

		int currentDate = 828;
		// 校验当前日期是否在日期内
		double price = course.checkDate(currentDate);
		
		System.out.println(price);
		Computer co = new Computer();
		System.out.println(co.keyboard);
	}

}
